Standard Paper Sizes

From Draftsperson.net

'''Metric ISO''', Imperial ANSI and USA Architectural are the worlds top standards for paper sizes. Of these mentric is number one!

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==Metric ISO Sheets==

==Metric ISO Sheets==

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'''An A0''' sheet is 1m². This allows paper weights to be expressed in grams per square meter. Example: 110gsm paper.

'''An A0''' sheet is 1m². This allows paper weights to be expressed in grams per square meter. Example: 110gsm paper.

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Each smaller sheet size is exactly half the area of the previous size. If you cut an A0 sheet in half you get two A1 sheets; If you cut an A1 sheet in half you get two A2 sheets; and so on.

Each smaller sheet size is exactly half the area of the previous size. If you cut an A0 sheet in half you get two A1 sheets; If you cut an A1 sheet in half you get two A2 sheets; and so on.

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The standard widths for rolls is 860 mm and 610 mm.

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The standard widths for rolls is 860 mm and 610 mm. ISO is an acronym for International Organization for Standardization. Oversize* sheets are used when it is desirable to give extra protection to the drawing sheets by providing a binding or trimming margin.

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ISO is an acronym for International Organization for Standardization

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Oversize* sheets are used when it is desirable to give extra protection to the drawing sheets by providing a binding or trimming margin.

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==Imperial ANSI and USA Architectural Sheets==

==Imperial ANSI and USA Architectural Sheets==

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*ANSI is an acronym for American National Standards Institute

*ANSI is an acronym for American National Standards Institute

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<CAPTION ALIGN=top>'''Cut Sizes of Imperial ANSI Sheets'''</CAPTION>

<CAPTION ALIGN=top>'''Cut Sizes of Imperial ANSI Sheets'''</CAPTION>

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[[category:Drafting Standards]]

[[category:Drafting Standards]]

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Current revision

Metric ISO, Imperial ANSI and USA Architectural are the worlds top standards for paper sizes. Of these mentric is number one!

Metric ISO Sheets

An A0 sheet is 1m². This allows paper weights to be expressed in grams per square meter. Example: 110gsm paper.

The ratio - length to width - of ISO sheets is 1 to the Square Root 2. A square root is a number that when multiplied by itself will produce the given number (the square).
This relationship of 1:Sq root 2 is particularly important for reduction onto microfilm, or reduction and enlargement on photocopiers. All metric equipment including microfilm cameras, microfilm printers, photocopiers, and even drawing pen sizes, are designed around this ratio. This makes the process of archiving drawings, resizing, and modifying drawings easy.

Each smaller sheet size is exactly half the area of the previous size. If you cut an A0 sheet in half you get two A1 sheets; If you cut an A1 sheet in half you get two A2 sheets; and so on.

The standard widths for rolls is 860 mm and 610 mm. ISO is an acronym for International Organization for Standardization. Oversize* sheets are used when it is desirable to give extra protection to the drawing sheets by providing a binding or trimming margin.

Cut Sizes of Metric ISO Sheets

Designation

Width (mm)

Length (mm)

A0

841

1189

A1

594

841

A2

420

594

A3

297

420

A4

210

297

A5

149

210

B1

707

1000

B2

500

707

B3

353

500

B4

250

253

Oversized* Metric Cut Sizes

Designation

Width (mm)

Length (mm)

RA0

860

1220

RA1

610

860

RA2

430

610

RA3

305

430

RA4

215

305

RA5

153

215

RB1

723

1019

RB2

510

723

RB3

361

510

RB4

255

361

Imperial ANSI and USA Architectural Sheets

An ANSI A sheet is 1 sq ft.

ANSI is an acronym for American National Standards Institute

Cut Sizes of Imperial ANSI Sheets

Designation

Width (inches)

Length (inches)

ANSI F

28"

40"

ANSI E

34"

44"

ANSI D

22"

34"

ANSI C

17"

22"

ANSI B/Tabloid

11"

17"

ANSI A/Letter

8.5"

11"

Cut Sizes of USA Architectural Sheets

Designation

Width (inches)

Length (inches)

ARCH F

30"

42"

ARHC E

36"

48"

ARCH D

24"

36"

ARCH C

18"

24"

ARCH B

12"

18"

ARCH A

9"

12"

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